Codes & Ordinances

On July 26, 2021 the Jefferson County, Missouri Council adopted Ordinance Number 21-0356 amending the Building Code and adopting a new fee schedule to apply to all building permits.  The new fee schedule is in  effect for ALL PERMITS STARTING ON SEPTEMBER 6, 2021.

Effective Codes

Following is a list of Codes and Ordinances currently in effect for Jefferson County:

• Building Code Local Amendments - Chapter 500
• Dangerous Building Order - Section 500.320
• Flood Damage Prevention Ordinance - Chapter 405
• On-Site Sewage Treatment Code - Chapter 705

Adopted Codes

The following Codes have been adopted by Jefferson County:

• International Building Code 2015
• International Energy Conservation Code 2015
• International Fire Code 2015
• International Fuel Gas Code 2015
• International Mechanical Code 2015
• International Plumbing Code 2015
• International Residential Code 2015
• International Swimming Pool and Spa Code 2015
• National Electric Code 2014/Jefferson County Electrical Code 2017